· The load does change, however, as the roll diameter increases. In small systems, this is a good appliion for dc motors or a servo motor. Regenerative power also is a concern and should be considered when sizing the industrial motor or choosing the energy control method. AC motors with encoders, closedloop control, and full quadrant drives may be beneficial for larger systems. Fans ...

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First, DC motor is not being used in modern elevators. It is VFD controlled induction motor doing duty. But if I were to choose type of DC motor for elevator, it would be DC shunt motor. It is true that DC series motor is generating high starting ...

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 · Soft Starting Arrangements Availables For Hot Rolling Mills For Energy Conservation written by , Dr. Bapat, Dr. Ganguly published on 2012/10/29 download full article with reference data and citations

 · rolling mills: Induction Motors with gear system to have more torque lathes: AC motors as well as Dc motors are used in lathe Machine ( varying from Machine to machine) power factor improv: Synchronous Motors are used for improving power factor but first we have to run system on induction motor to achieve near synchronous rpm. Upvote (1) Downvote (0) Reply (0) Answer added by Karam .

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Title: Dc motor speed synchronisation for rolling mill Page Link: Dc motor speed synchronisation for rolling mill Posted By: Guest Created at: Sunday 01st of September 2013 01:58:07 AM Last Edited Or Replied at :Sunday 01st of March 2015 01:47:29 AM [:=Show Contents=:] dc motor speed synchronisation for rolling mill, speed syncronization of dc motor of rolling mills, dc motor speed ...

China Electric Motor manufacturer DC Motor AC Motor. Oct 29 2015 Ningbo Jirun Electric Machine Co Ltd is specialized in the manufacturing of AC Motor and DC Motor We supply the motor according IEC and NEMA standard Such as Z4 series DC MotorRolling mill ZZJ800 series applying in steel mill transmission ZFQZ often starting and brakingDC Motor YEJ Series AC Squirrel Cage Brake motor YB2 .

 · An induction motor can further be of two types: Single Phase Induction Motor and Three Phase Induction classifiion of induction motor is based on the type of power supply required for its operation. 1 phase AC supply is required for single phase induction motor whereas 3 phase AC supply is needed for three phase induction motor.

Motor burnt, how much is the cost of motor, from where I can get,second can I use ac motor instead of DC motor. Reply. Brian Murray December 30, 2019 at 7:31 pm from Arkansas. An AC motor would certainly last longer, but your treadmill would not allow an upgrade to AC motor without major changes that would be cost prohibitive. Reply . nag May 23, 2019 at 6:44 am from VIC. how many watts needed ...

An electric control arrangement for controlling the speed of a roll driving motor for rolling mills for manufacturing hollow blocks is described. A power controller determines from the speed, field strength and armature current of the driving motor, the actual value of the motor power, compares the latter with a reference value, and generates a controlled variable which is fed to a current ...

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 · AC motors are often used for their highspeed and variable torque, but typically torque will exhibit a drop as the motor speed increases. DC motors can produce high torque and are valuable where speed control is needed. DC motors can provide a more constant torque over the speed range, and generally provide faster response to load changes that AC motors. Depending on the configuration of .